基于MRAS速度辨识矢量控制系统的仿真研究

Simulation Research on Vector Control System Using MARS Speed Identification

利用易于检测的电动机定子电压和电流得到电动机转速的模型参考自适应(MRAS)辨识算法,以MATLAB内含的电气系统模块库为基础,建立了MRAS速度辨识仿真模型,应用到无速度传感器异步电动机矢量控制系统中,研究结果证明该MRAS速度辨识模型具有满意的辨识精度和动态性能。

According to the reduced order model of induction motor, a model reference adaptive speed identification algorithm is obtained from measured motor stator voltages and currents. A MRAS speed identification model was built based on MATLAB's power system Blockset. The detailed simulation researches were tested on the speed-sensorless vector control of induction motor. The result shows that this MRAS speed identification model has satisfactory dynamic characteristic and identification precision.